Writer/director Choi Seok Won helms My Boyfriend is Type B, a screwball romantic comedy about a young woman who falls hard for a guy whose outrageous personality may very well be related to his blood type! Han Ji Hye stars as Ha Mi, a beautiful university student who lands a hunky, but totally obnoxious boyfriend by the name of Young Bin (popular Korean idol Lee Dong Gun).

The film's premise hinges on the wacky theory that a person's blood type has a direct effect on one's love life. Case in point: a type-B male like Young Bin is said to be conceited and stubborn whereas a type-A girl like Ha Mi is destined to be timid and obedient for the rest of her life. Thus, it's a bad match from the get-go if one believes in the blood type theory. Even so, can these two vastly different people find love in spite of their seeming blood type incompatibility? Find out in My Boyfriend is Type B, a wacky Lunar New Year comedy that just about anybody can enjoy - regardless of blood type!

Lee Dong Gun and Han Ji Hye shot to fame after starring in the popular Korean drama Sweet 18 and have since been considered to be the perfect couple, which was one of the reasons why they paired up again for My Boyfriend is Type B.